Problem (1):
If the person enters a gym-club he must pay L.E. 20 and he has to pay L.E. 10 for each game he plays. From the experience of the owner of the club he found that the distribution of the number of games played by the players was as follows:
|
No. of games played
|
1
|
2
|
3
|
4
|
5
|
6
|
|
No. of players
|
7
|
8
|
15
|
9
|
6
|
5
|
Calculate the average payment of any player.
Problem (2):
Suppose a sample of 10 statistics books gave a mean price of $ 48 and a sample of 8 mathematics books gave a mean price of $ 49. Find the mean price of a book of statistics or mathematics.